Checking if email is valid

[D'Arcy Cain]

On 2023-11-02 02:04, Chris Angelico via Python-list wrote:
> On Thu, 2 Nov 2023 at 15:20, AVI GROSS via Python-list
> <python-list at python.org> wrote:
>>
>> Yes, it would be nice if there was a syntax for sending a test message sort
>> of like an ACK that is not delivered to the recipient but merely results in
>> some status being sent back such as DELIVERABLE or NO SUCH USER or even
>> MAILBOX FULL.
>>
> 
> Yes, it would! Spammers would be able to use this syntax to figure out
> exactly which addresses actually have real people connected to it. It
> would save them so much trouble! Brilliant idea.

Which is exactly why we stopped doing it.  In fact, mailing software may 
even have a control to turn it back on but definitely it doesn't reply 
to the request as delivered.

-- 
D'Arcy J.M. Cain
System Administrator, Vex.Net
http://www.Vex.Net/ IM:darcy at Vex.Net
VoIP: sip:darcy at Vex.Net